Simple arithmetic program code in shell programming.

Here is a code in which simple arithmetic operation like-Addition , Subtraction, Multiplication, division and reminder are performed--


read  a
read  b
echo ******************************
echo Addition is= `expr $a + $b`
echo Substraction is= `expr $a - $b`
echo Modulas is= `expr $a % $b`
echo Multiplication is= `expr $a \* $b`
echo divide is= `expr $a / $b`
echo  ******************************

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